diff --git a/IRaCIS.Core.Application/Service/Inspection/DTO/InspectionModel.cs b/IRaCIS.Core.Application/Service/Inspection/DTO/InspectionModel.cs
index dfd96079c..412f1026d 100644
--- a/IRaCIS.Core.Application/Service/Inspection/DTO/InspectionModel.cs
+++ b/IRaCIS.Core.Application/Service/Inspection/DTO/InspectionModel.cs
@@ -298,7 +298,7 @@ namespace IRaCIS.Core.Application.Service.Inspection.DTO
         public T Data { get; set; }
 
        
-        public SignDTO SignInfo { get; set; }
+        public SignDTO? SignInfo { get; set; }
 
       
     }